Airworthiness Directive

AD 98-09-25 63 FR 23205 Active

Federal Aviation Administration · 14 CFR part 39

FR document
98-11161
Amendment
39-10506
Published
1998-04-28
Effective
1998-06-15
Models covered
1
Last live check
2026-09-30
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AD

98-09-25

FR doc 98-11161 · 63 FR 23205

AD 98-09-25Published 1998-04-28Effective 1998-06-15

FAA rule - 14 CFR 39

FAA rule. Compliance with an applicable AD is required under 14 CFR 39.7. Check its effective date, applicability, compliance times and current status.

Requires replacing the lower spar splice plate and reworking the lower spar caps.

Full official abstract

This amendment adopts a new airworthiness directive (AD) that applies to certain The New Piper Aircraft, Inc. (Piper) Models PA-31, PA-31-300, PA-31-325, and PA-31-350 airplanes. This AD requires replacing the lower spar splice plate and reworking the lower spar caps. This AD results from numerous reports of fretting and cracking of the lower spar splice plates on Piper PA-31 series airplanes in Australia, and a report of one incident in the United States. The actions specified by this AD are intended to prevent failure of the lower spar splice plate caused by fretting and cracking, which could result in loss of control of the airplane.

More directives for Piper PA-31 Navajo/Cheyenne

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  3. AD 2016-08-18 Airworthiness Directives; Piper Aircraft, Inc. Airplanes 2016-05-02
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  5. AD 2015-24-05 Airworthiness Directives; Piper Aircraft, Inc. Airplanes 2015-12-08

All Piper PA-31 Navajo/Cheyenne directives

Applies to 1 model in our index